ICP-AES CRI, Soil Matrix, in 5% HNO3, 100ml

n-Tetradecane , ?13C: -33.13, 150ug/ml, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no. 629-59-4

2,3,4,5-Tetrabromobenzoic acid, 1.2ml x 50ug/ml, methanol

(-)-delta-9-THC-13C4, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no.